FreeRTOS Category - Page 18 of 23 - CNX Software

April 26, 2017 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

$14 LinkIt 7697 Bluetooth 4.2 LE and WiFi IoT Board is Powered by Mediatek MT7697 ARM Cortex-M4 MCU

Mediatek Labs has launched a new IoT development, which on the surface looks similar to LinkIt Smart 7688 board, but the internal design is quite different as the MIPS processor and Linux OS, have been replaced by Mediatek MT7697 ARM Cortex-M4 processor running FreeRTOS, and beside WiFi, also includes support for Bluetooth 4.2 LE. LinkIt 7697 board specifications: Wireless SoC – Mediatek MT7697 ARM Cortex M4F MCU @ 192 MHz with 352KB RAM, 4MB flash, 802.11 b/g/n WiFi, Bluetooth 4.2 LE and a PMU Expansion – 2x 14-pin header with 18x GPIO, 2x UART, 1x I2C, 1x SPI, 18x PWM, 4x EINT, 4x ADC (0 to 2.5V), 1x IrDA, 1x I2S Debugging – 1x SWD, CP2102 UART to USB chipset Misc – Reset and user buttons; power and user LEDs Power Supply – 5V via micro USB port Dimensions – 48 x 26 mm The board can be programmed with […]

April 9, 2017 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

ESPurna-H is a Compact Open Source Hardware Board with ESP8266 WiSoC, a 10A Relay, HLW8012 Power Monitoring Chip

ESPurna is an open source firmware for ESP8266 based wireless switch as such Sonoff POW, which I’ve been personally using to monitor my office’s power consumption. The developer, Xose Pérez (aka tinkerman), has now developed his own hardware with ESPurna-H board, as existing wireless switches with power monitoring functions would not fit into a gang box. ESPurna-H board specifications: WiFi Module – ESP12 with Espressif ESP8266 WiSoC Relay – Songle SRD-05VDC-SL-C 10A relay with NO and NC connection Power Monitoring – HLW8012 chip as found in Sonoff POW Expansion – 2x 5-pin header with the programming GPIOs, and two connections for external button and LEDs Misc – Reset button Power Supply Input – 100 ~ 240V AC Output – 5V up to 600 mA via Hi-Link HLK-PM01 Safety – Optical isolation between the logic circuit and the relay circuit Dimensions – 50x50x20mm Xose designed the board with Eagle 8.0 and released […]

April 7, 2017 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Hornbill ESP32 Development Boards Come with an Optional IP67 Rated Enclosure (Crowdfunding)

While there are plenty of ESP32 development boards, and prices have recently plummeted, getting a case for your project can still be a problem especially if you plan to use it outdoor, as you need to protect your hardware from rain and dust. Hornbill project offers two ESP-WROOM-32 based boards, a prototype board, and an IP67 certified case that could be useful for outdoor use. Hornbill ESP32 Development Boards Let’s start by checking the boards available starting with ” Hornbill ESP32 Dev” board with the following specs: ESP-WROOM-32 module with WiFi, Bluetooth LE, FCC, CE, IC, MIC (Telec), KCC, and NCC certifications I/O headers 2x 19-pin headers with GPIOs, I2C, UART, SPI, ADC, DAC, touch interface, VN/VP, 5V, 3.3V and GND Breadboard-friendly Debug – Built-in CP21XX USB-to-serial Power Supply – 5V via micro USB port, battery header + single cell LiPo charger Dimensions – TBD ESP32 Minima is also based […]

March 31, 2017April 3, 2017 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

Is NodeMCU ESP-32S Board Now Selling for $8.50 Shipped?

ESP32 SoC with WiFi and Bluetooth launched last September for around $3, followed soon after by ESP32 modules for $7, and a few weeks later, easier to use ESP32 development boards were introduced, but sold for around $20 likely due a mismatch between supply and demand. That’s not overly expensive, but in a world of $4 ESP8266 boards and $10 Raspberry Pi Zero W with Linux, WiFi and Bluetooth, it may feel that way. But today, I noticed DealExtreme sold GeekWorm ESP32 board with ESP-WROOM-32 module for just $11.64 shipped. That’s good progress, but surely Aliexpress must now have cheaper options, and sure enough, I could find NodeMCU ESP-32S board (now confirmed NOT to be an official NodeMCU devkit) sold for $6.95 + shipping, which brought the price up to about $8.50. NodeMCU ESP-32S specifications: Wireless Module – ESP-WROOM-32 with Espressig ESP32 dual core processor with 802.11 b/g/n WiFi and […]

March 3, 2017May 8, 2022 by Jean-Luc Aufranc (CNXSoft) - 35 Comments

$12 AI Light ESP8266 based WiFi RGB Light Bulb Supports MQTT via ESPurna Open Source Firmware

AI-Thinker is famous in the maker world for their ESP8266 modules, but they’ve also recently launched a WiFi RGB light bulb that sells for about $12.5 and up on eBay and Aliexpress. Some people noticed, and bought samples online, including Xose Pérez (aka Tinkerman), ESPurna open-source firmware developer, who could confirm ESP8266 was used in the light bulb, did some investigations, and eventually added the light bulb into ESPurna, which means it can be managed using MQTT or a web interface. AI Light looks very similar to Philips Hue, but comes with WiFi instead of Zigbee. AI Light “M1636” key features: RGBW LED E27 bulb with 16.7M colors Connectivity – 802.11 b/g/n WiFi Encryption – AES Voltage Range – 110-240V LED Power – 5 watts WiFi Power Consumption – ≤0.3W Temperature Range – -5~45degree Humidity – ≤80% Certifications – FCC, CE, ROHS If you’re going to use the stock firmware, […]

March 2, 2017June 18, 2018 by Karl Johnson - 11 Comments

Karl’s Home Automation Project – Part 2: 433 MHz / WiFi MQTT Bridge, Door & PIR Motion Sensors

Karl here again for part 2 of my home automation project. We will be looking at how to automate your lights based on time of day and motion. In the first part we setup Home Assistant and uploaded firmware to basic Sonoff Wifi switches. Today we will setup a 433 MHz to MQTT bridge and some sensors. 433 MHz Depending on your country 433 MHz is an open frequency to use to communicate with. There are hundreds of different types of devices that use 433 MHz to communicate information. We will be focusing on 2 today from Gearbest: WMS07 motion sensor (left) and WDS07 door/window sensor (2 parts, right). I am not taking the door/window sensor apart, since it is super basic, but I’ve included some photos of the PIR motion detector. 433 MHz Bridge While contemplating how to get presence on a per room basis I ran across this […]

February 28, 2017February 28, 2017 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Compulab IOT-GATE-iMX7 is an NXP i.MX7 IoT Gateway for Industrial Applications

CompuLab has introduced IOT-GATE-iMX7 compact fanless IoT gateway and industrial controller built around the company’s CL-SOM-iMX7 system-on-module, and offering Ethernet, WiFi, Bluetooth, 3G and Zigbee connectivity.Compulab IOT-GATE-iMX7 gateway specifications: SoC – NXP i.MX 7 dual ARM Cortex-A7 processor @ up to 1GHz with ARM Cortex-M4 core @ 200Mhz, 2D graphics engine System Memory – Up to 2GB DDR3L-1066 Storage – Up to 32GB on-board eMMC + micro-SD socket Connectivity Dual Gigabit Ethernet Dual band WiFi 802.11 a/b/g/n Bluetooth 4.1 BLE Optional 3G cellular module via mini PCie socket Optional ZigBee NXP JN5168 module Display – DVI up to 1920×1080 using a HDMI connector Audio – 3.5mm jacks for stereo line out, stereo line in USB – 4x USB2.0 host ports, type-A connectors Serial – 1x RS485 / RS422 port, RJ11 connector; 1x RS232 port, ultra-mini serial connector; 1x serial console via UART-to-USB bridge, micro-USB connector Expansion mini-PCIe socket, full-size embedded […]

February 27, 2017April 22, 2017 by Karl Johnson - 30 Comments

Karl’s Home Automation Project – Part 1: Home Assistant & YAML, MQTT, Sonoff, and Xmas Lights

Karl here. I am here to write about my home automation project. First thing I want to say is that I am very cost conscious and I don’t mind putting in extra effort into the setup of things to keep costs down. I did invest a lot of time and had to do a lot of reading to get my project going. It took while and I received a lot of groans from my wife while testing. I am still in the process of tweaking things. I started watching a series of videos on YouTube from Bruh Automation. He introduced me to Home Assistant. It got me really excited. He uses a Raspberry Pi as a server but I already had a Wintel Pro CX-W8 Smart TV Box which I use as a server. I run 3 Minecraft Servers, Emby Server, iSpyConnect DVR (2 IP Cameras), Unifi wifi controller, and […]